帶通式頻率選擇面縮小化新式方法

A New Methodology for Developing Miniaturized-Element Bandpass Frequency Selective Surfaces

顏立心(Li-Hsin Yen)

指導教授 ： 吳宗霖

國立臺灣大學/電機資訊學院/電信工程學研究所/碩士(2017年)

https://doi.org/10.6342/NTU201703263

摘要

此篇碩士研究論文中提出一新式的頻率選擇面縮小化方法，此方法的核心架構為利用金屬連通柱達成增加結構中的等效電容並藉此降低共振頻率。此方法的優點為可廣泛應用於各種不同的頻率選擇面結構，並提供良好的縮小化效果、斜向入射穩定度，以及額外的共振頻率調整自由度。此篇論文中以多種不同的頻率選擇面作為應用此縮小化方法之範例，並討論其物理特性。此外，本論文中提出一等效電路模型，可精確的預測此結構的頻率響應，並包含斜向入射的效應。最後，本論文介紹了研究過程中進行的兩種實驗量測方法，並比較量測結果與模擬結果以驗證提出之理論。

關鍵字

頻率選擇面 ； 縮小化頻率選擇面 ； 共振穩定度 ； 斜向入射效應 ； 金屬連通柱結構 ； 雙頻頻率選擇面

並列摘要

A novel methodology based on a new concept of via-pair insertion is proposed. The methodology provides a solid, efficient, and flexible way to achieve remarkable element miniaturization, good stability to incident angle, and wide frequency adjustment range. Several FSS designs have been developed and discussed under the proposed concept. An accurate equivalent circuit model with closed-form formulas is proposed as well. Finally, two different experiments were done to validate the proposed methodology. Good agreement is shown among the results of experiments, of the full-wave simulation, and of the proposed equivalent circuit model.

並列關鍵字

Frequency-selective surface (FSS) ； miniaturized-element FSS ； miniaturization ； resonance stability ； oblique incidence ； via-pair insertion ； dual-band FSS

參考文獻

[1] B. A. Munk, Frequency Selective Surfaces: Theory and Design, Hoboken, NJ: Wiley, 2002.

[3] Y.-M. Yu, C.-N. Chiu, Y.-P. Chiou, and T.-L. Wu, “A novel 2.5-dimensional ultraminiaturized-element frequency selective surface,” IEEE Trans. Antennas Propag., vol. 62, no. 7, pp. 3657-3663, Jul. 2014.

[4] Y.-M. Yu, C.-N. Chiu, Y.-P. Chiou, and T.-L. Wu, “An effective via-based frequency adjustment and minimization methodology for single-layered frequency-selective surfaces,” IEEE Trans. Antennas Propag., vol. 63, no. 4, pp. 1641-1649, Apr. 2015.

[5] A. Ebrahimi, Z. Shen, W. Withayachumnankul, S. F. Al-Sarawi, and D. Abbott, “Varactor-Tunable Second-Order Bandpass Frequency-Selective Surface With Embedded Bias Network,” IEEE Trans. Antennas Propag., vol. 64, no. 5, pp. 1672-1680, May. 2016.

[6] M. Gao, S. M. A. M. H. Abadi, and N. Behdad, “A Dual-Band, Inductively Coupled Miniaturized-Element Frequency Selective Surface With Higher Order Bandpass Response,” IEEE Trans. Antennas Propag., vol. 64, no. 8, pp. 3729-3734, Aug. 2016.